Need

Generate quickly such vizualisations

Using bokeh - holoviews

https://holoviews.org/reference/elements/bokeh/Chord.html

import pandas as pd
import holoviews as hv
from holoviews import opts, dim
from bokeh.sampledata.les_mis import data

hv.extension('bokeh')
hv.output(size=200)

links = pd.DataFrame(data['links'])
print(links.head(3))

   source  target  value
0       1       0      1
1       2       0      8
2       3       0     10

# libraries
import pandas as pd
import holoviews as hv
from holoviews import opts, dim
from bokeh.sampledata.les_mis import data

# data set
nodes = hv.Dataset(pd.DataFrame(data['nodes']), 'index')

# chord diagram
chord = hv.Chord((links, nodes)).select(value=(5, None))
chord.opts(
    opts.Chord(cmap='Category20', edge_cmap='Category20', edge_color=dim('source').str(), 
               labels='name', node_color=dim('index').str()))

nodes

:Dataset   [index]   (name,group)

Using excel

There are examples from https://sites.google.com/site/e90e50fx/home/talent-traffic-chart-with-chord-diagram-in-excel

that we can download and use.

Seems limited to a fixed number of category